#include <pthread.h>
#include <stdio.h>
#include <sys/syscall.h>
#include <time.h>
#include <unistd.h>

#include "elog.h"

#ifdef ELOG_FILE_ENABLE
#include "plugins/file/elog_file.h"
#endif
static pthread_mutex_t output_lock;

/**
 * EasyLogger port initialize
 *
 * @return result
 */
ElogErrCode elog_port_init(void) {
  ElogErrCode result = ELOG_NO_ERR;

  pthread_mutex_init(&output_lock, NULL);

#ifdef ELOG_FILE_ENABLE
  elog_file_init();
#endif

  return result;
}

/**
 * EasyLogger port deinitialize
 *
 */
void elog_port_deinit(void) {
#ifdef ELOG_FILE_ENABLE
  elog_file_deinit();
#endif

  pthread_mutex_destroy(&output_lock);
}

/**
 * output log port interface
 *
 * @param log output of log
 * @param size log size
 */
void elog_port_output(const char *log, size_t size) {
  /* output to terminal */
#ifdef ELOG_TERMINAL_ENABLE
  printf("%.*s", (int)size, log);
#endif

#ifdef ELOG_FILE_ENABLE
  /* write the file */
  elog_file_write(log, size);
#endif
}

/**
 * output lock
 */
void elog_port_output_lock(void) { pthread_mutex_lock(&output_lock); }

/**
 * output unlock
 */
void elog_port_output_unlock(void) { pthread_mutex_unlock(&output_lock); }

/**
 * get current time interface
 *
 * @return current time
 */
const char *elog_port_get_time(void) {
  static char cur_system_time[24] = {0};

  time_t cur_t;
  struct tm cur_tm;

  time(&cur_t);
  localtime_r(&cur_t, &cur_tm);

  strftime(cur_system_time, sizeof(cur_system_time), "%Y-%m-%d %T", &cur_tm);

  return cur_system_time;
}

/**
 * get current process name interface
 *
 * @return current process name
 */
const char *elog_port_get_p_info(void) {
  static char cur_process_info[10] = {0};

  snprintf(cur_process_info, 10, "pid:%04d", getpid());

  return cur_process_info;
}

/**
 * get current thread name interface
 *
 * @return current thread name
 */
const char *elog_port_get_t_info(void) {
  static char cur_thread_info[10] = {0};

  snprintf(cur_thread_info, 10, "tid:%04d", syscall(SYS_gettid));

  return cur_thread_info;
}
